• Corpus ID: 239885443

Non-dispersive one-way signal amplification in sonic metamaterials

@inproceedings{Kruss2021NondispersiveOS,
  title={Non-dispersive one-way signal amplification in sonic metamaterials},
  author={Noah Kruss and Jayson Paulose},
  year={2021}
}
Parametric amplification—injecting energy into waves via periodic modulation of system parameters—is typically restricted to specific multiples of the modulation frequency. However, broadband parametric amplification can be achieved in active metamaterials which allow local parameters to be modulated both in space and in time. Inspired by the concept of luminal metamaterials in optics, we describe a mechanism for one-way amplification of sound waves across an entire frequency band using… 

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